A New Reflectivity Index for the Retrieval of Surface Soil Moisture From Radar Data

Autor: Jérôme Demarty, Nicolas Baghdadi, Sekhar Muddu, Myriam Foucras, Mehrez Zribi

Publikováno v: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 818-826 (2021)
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, IEEE, 2021, 14, pp.818-826 / 9237103. ⟨10.1109/JSTARS.2020.3033132⟩
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021, 14, pp.818-826 / 9237103. ⟨10.1109/JSTARS.2020.3033132⟩

International audience; A new approach based on the change detection technique is proposed for the estimation of surface soil moisture (SSM) from a time series of radar measurements. A new index of reflectivity (IR) is defined that uses radar signals

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b91974379c8e46bfee9e951e79ee17d4
https://ieeexplore.ieee.org/document/9237103/

Estimating 500-m Resolution Soil Moisture Using Sentinel-1 and Optical Data Synergy

Autor: Jean-Christophe Calvet, Mehrez Zribi, Thierry Pellarin, Myriam Foucras, Nicolas Baghdadi, Clément Albergel

Publikováno v: Water, Vol 12, Iss 3, p 866 (2020)
Water
Water, MDPI, 2020, 12 (3), pp.866. ⟨10.3390/w12030866⟩
Water, 2020, 12 (3), pp.866. ⟨10.3390/w12030866⟩
Volume 12
Issue 3

The aim of this study is to estimate surface soil moisture at a spatial resolution of 500 m and a temporal resolution of at least 6 days, by combining remote sensing data from Sentinel-1 and optical data from Sentinel-2 and MODIS (Moderate-Resolution

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::343eadd9aa28af32a7f68c3e7097393e
https://www.mdpi.com/2073-4441/12/3/866

Study on the cross-correlation of GNSS signals and typical approximations

Autor: Bertrand Ekambi, Myriam Foucras, Cyril Botteron, Jérôme Leclère, Christophe Macabiau, Pierre-André Farine, Olivier Julien

Publikováno v: GPS Solutions
GPS Solutions, Springer Verlag, 2016, ⟨10.1007/s10291-016-0556-7⟩

International audience; In global navigation satellite system (GNSS) receivers, the first signal processing stage is the acquisition, which consists of detecting the received GNSS signals and determining the associated code delay and Doppler frequenc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f3a153abe3e9ba017c24b23243afa05
https://hal-enac.archives-ouvertes.fr/hal-01353985/document

Performance Study of FLL Schemes for a Successful Acquisition-to-Tracking Transition

Autor: Christophe Macabiau, Myriam Foucras, Jen Yu Li, Olivier Julien, Bertrand Ekambi, Ulrich Ngayap

Publikováno v: Proceedings of the 2014 IEEE/ION PLANS Technical Program
IEEE/ION PLANS 2014, Position Location and Navigation Symposium
IEEE/ION PLANS 2014, Position Location and Navigation Symposium, May 2014, Monterey, United States. pp xxxx

International audience; This article focuses on the analysis of several FLL schemes for different GNSS signals in order to success the acquisition-to-tracking transition at low received C/N0. In a first part, a discussion on different FLL discriminat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65545ef868a57693dc0d2c50b4649245
https://hal-enac.archives-ouvertes.fr/hal-00989788/document